Top 6 High Voltage Fuse Manufacturers 2025

In today’s rapidly evolving power infrastructure landscape, high voltage fuses play a crucial role in protecting electrical systems from overcurrents and potential hazards. Whether in utility substations, industrial plants, or renewable energy installations, choosing the right high voltage fuse can directly impact operational safety and system longevity. As global demand for reliable and efficient protection solutions continues to rise, several manufacturers have emerged as industry leaders, each offering distinct technologies and specialties.

This article explores six of the top high voltage fuse manufacturers worldwide, highlighting their unique strengths and contributions to the electrical protection market. Among them, GRL Electric stands out with its deep expertise, broad product portfolio, and proven reliability across a wide range of high voltage applications. Let’s take a closer look at these key players and what sets them apart in the competitive landscape.

Top 6 High Voltage Fuse Manufacturers Leading the Global Market

GRL

Company Overview

Established in 1992, Zhejiang GRL Electric Co., Ltd. has grown into a respected leader in China’s electrical component industry, serving the mid to high-end market with advanced protection and connection solutions. Originally founded as Yueqing Xingxin Switch Factory by Mr. Yaodong Liu, the company was restructured under the leadership of David Liu, who envisioned building a globally recognized brand. GRL now integrates R&D, manufacturing, and sales, offering products that meet strict international standards such as CE, TUV, CB, and CCC certifications.

GRL’s product portfolio includes high voltage fuses, fuse holders, isolators, busbar systems, PV disconnect switches, and more—serving industries ranging from power utilities to solar energy. With over 65 engineers in its R&D team, a 40,000-square-meter production facility, and a long-standing commitment to customization and safety, GRL has become a preferred partner for clients seeking reliable and scalable fuse solutions. As the company continues to expand its international presence, it remains focused on delivering innovation and technical expertise with every product.

High Voltage Fuse from GRL

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GRL Electric offers a comprehensive range of high voltage fuses designed to meet the demanding needs of today’s power distribution and transmission networks. Their product lineup includes drop-out fuses, current limiting backup fuses, fuse wires, and capacitor protection fuses—all engineered for fast fault clearance, enhanced reliability, and compliance with international safety standards. These fuses ensure precise protection for transformers, lines, and high-voltage equipment, minimizing downtime and preventing costly damage.

A key product, the Drop-Out Fuse Cutout, is widely used outdoors on the high-voltage side of distribution transformers or branch lines. It provides essential overload and short-circuit protection while enabling safe load current switching. The fuse element blows and physically drops out of the circuit during faults, ensuring quick isolation and system safety. GRL’s current limiting fuses, designed for indoor AC systems from 12kV to 24kV with currents up to 200A, offer rapid response to overcurrent events, limiting energy let-through and protecting sensitive equipment.

NATIONAL FUSE

Company Overview

Since its founding in 1991 in Cleveland, Ohio, National Fuse Products has become a leading worldwide distributor of high-quality fuses and electrial products. Serving OEM, MRO, and distribution markets, they offer a wide range of North American, Japanese, and European fuses from top brands like Mersen, Legrand, and Littelfuse.

With over 30 years of experience, National Fuse provides competitive pricing, fast delivery, and expert support to help customers find even hard-to-get products. Their dedicated team ensures reliable service for electrical professionals globally.

High Voltage Fuse from National Fuse

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National Fuse Products offers a wide selection of high voltage fuses, including the reliable and economical S&C Electric Company fuses. Established in 1911, S&C designs and manufactures switching and protection products widely used in utility and industrial substations. Their SM series high voltage fuses provide superior upstream and downstream protection for transformers, capacitor banks, and cables on systems rated up to 34.5 kV.

These fuses come in various continuous current ratings from 200 to 720 amperes and fault-interrupting capacities ranging from 28,000 to 60,000 amperes RMS asymmetrical. Available in standard, slow, and coordinating speeds with durable silver or nickel-chrome fusible elements, these fuses enable precise coordination and maximum protection. National Fuse supports customers with detailed selection guides and expert advice to ensure the right fuse for every application.

LITTLEFUSE

Company Overview

Littelfuse, headquartered in Rosemont, Illinois, is a diversified industrial technology company with over 16,000 employees worldwide. For more than 95 years, it has been driving innovation to deliver reliable and safe solutions across industries such as automotive, electronics, transportation, and power distribution. Serving over 100,000 customers globally, Littelfuse’s products are embedded in many everyday and industrial applications. The company is committed to making the world safer, more connected, and sustainable through advanced technology and quality products.

With operations spanning over 50 countries and more than 20 research laboratories worldwide, Littelfuse continuously advances its technology and sustainability efforts. Their broad portfolio includes fuses, circuit protection devices, sensors, and more, catering to diverse industrial needs. This global presence and focus on innovation make Littelfuse a trusted partner for engineers and businesses worldwide.

High Voltage Fuse from Littlefuse

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Littelfuse high-voltage fuses are specially designed to protect circuits, batteries, and chargers in electric and hybrid vehicles, as well as EV charging stations. Using advanced diffusion pill technology, these fuses provide reliable, time-delayed overcurrent protection to ensure system safety and longevity. Rated for 500 V DC and available with ampere ratings from 10 A to 50 A, they support interrupting capacities up to 20 kA.

Available in various configurations—including blade, bolt-down, cartridge, and surface mount—Littelfuse high-voltage fuses offer flexibility in circuit design. Their ceramic bodies ensure durability, while color-coded bands help with easy identification. Designed to operate reliably across a wide temperature range from -40°C to +125°C, these fuses comply with industry standards such as ISO 8820-8 and JASO D622, making them a trusted choice for modern high-voltage applications.

SOUTHERN STATES

Company Overview

Located in Hampton, Georgia, Southern States LLC is recognized as the largest manufacturer of high voltage disconnect switches globally. With over 100 years of history dating back to 1916, Southern States combines deep engineering expertise with dedicated craftsmanship to produce reliable power switching solutions tailored to customers’ specific needs.

The company operates from multiple facilities totaling over 235,000 square feet, including manufacturing, engineering, and service centers. Southern States emphasizes quality, holding ISO 9001:2015 certification, and provides comprehensive after-sales support to ensure optimal product performance. Their experienced sales and technical teams collaborate closely with clients to deliver innovative and customized high voltage products worldwide.

High Voltage Fuse from Southern States

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Southern States offers a robust range of medium and high voltage power fuses designed to protect small to medium-sized power transformers, potential transformers, station service transformers, and capacitor banks. These fuses provide an economical, compact, and efficient solution without the need for auxiliary equipment, making them ideal for applications where space and cost are critical and fault operations are infrequent.

Their Type BP, BPA, and HPA power fuses stand out for durability, allowing up to three full fault operations before tube replacement is required, significantly reducing total life-cycle costs. Available with voltage ratings from 7.2 kV up to 169 kV, current ratings up to 400 A, and interrupting capacities up to 40 kA RMS asymmetrical, Southern States fuses deliver dependable protection with advanced features like fiberglass tubes, fully enclosed contacts, and self-locking hinge assemblies.

INTER-TEKNIK

Company Overview

Founded in 1969 in Turkey through technology transfer from Driescher Moosburg, Inter-Teknik has grown into a global leader in medium voltage (MV) fuse-links and switch disconnectors. With a strong commitment to technical excellence and customer-focused service, the company has built a reputation for delivering reliable MV protection solutions worldwide.

In recent years, Inter-Teknik expanded its offerings to include MV protection relays and wireless sensor monitoring systems, positioning itself as a comprehensive provider for grid protection and monitoring. Recognized among Turkey’s fastest-growing companies, Inter-Teknik continues to innovate with a dedicated team and extensive global partnerships to meet evolving energy grid demands.

High Voltage Fuse from Inter-Teknik

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In1969, Inter-Teknik has specialized in designing and manufacturing high-voltage (HV) fuses that meet all relevant international standards. With over 50 years of experience, they offer comprehensive expertise from product design to technical support and project-specific development, ensuring optimal fuse selection and performance.

Their HV fuse range includes state-of-the-art solutions for protecting transformers, motors, capacitor banks, and power lines. Inter-Teknik provides detailed technical guidance to help customers choose the right fuse for each application, supported by extensive application and protection guides. This commitment to quality and service positions Inter-Teknik as a trusted global supplier of reliable HV fuse protection.

YINRONG

Company Overview

Founded in 1980, Zhejiang Galaxy Fuse Co., Ltd. is a leading modern enterprise specializing in R&D, production, and sales of high-quality high and low voltage fuses, solar photovoltaic fuses, new energy automotive fuses, and fuse holders. With over 40 patents, multiple UL, TUV, and CE certifications, the company is recognized for its innovative technologies, including parallel fuse arc extinguishing and fast-breaking circuit protection, enhancing fuse safety and performance.

Zhejiang Galaxy operates automated production lines capable of high-volume manufacturing while maintaining strict quality control based on international standards. Their products serve domestic markets and are exported globally to regions such as Europe, the United States, India, South Korea, and Southeast Asia. Committed to technological innovation and customer satisfaction, Zhejiang Galaxy Fuse offers reliable and customized circuit protection solutions worldwide.

High Voltage Fuse from YINRONG

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The XRNT High Voltage Current-Limiting Fuse from Zhejiang Galaxy Fuse Co., Ltd. offers reliable and comprehensive circuit protection with a high breaking capacity. Designed for electrical systems operating at 50 Hz with rated voltages from 30.6 kV to 40.5 kV and rated currents up to 200A, these fuses provide effective short-circuit and overload protection for transformers and other electrical equipment.

Available in two sizes—292×76mm and 192×51mm—the XRNT fuses feature a durable fuse tube made from high-temperature resistant materials such as ceramic or epoxy glass, filled with chemically treated high-purity quartz sand that rapidly extinguishes electrical arcs during faults. With CE, TUV, and UL certifications, Yinrong ensures fast delivery and high quality, making these fuses a dependable choice for high voltage protection needs.

Conclusion

When choosing high voltage fuses, GRL stands out for its exceptional blend of advanced technology, product variety, and customer support. With a comprehensive range including drop-out fuses, current-limiting fuses, and capacitor protection fuses, GRL offers tailored solutions that meet stringent international standards while ensuring fast fault clearance and enhanced system reliability. Coupled with dedicated technical guidance and a strong global service network, GRL provides unmatched value and peace of mind for power system protection—making it the superior choice for dependable, long-term performance.